Question about Samsung Portable SSD T3

That depends on the formatting of the SSD.

- Windows uses NTFS by default.
- Mac uses HFS+
- Linux mostly uses ext4

If the SSD is formatted as FAT32 (with a tool, e.g. fat32format), you will probably have the least problems, but also the restriction that the individual file can only be a maximum of 4 GiB in size.

If you format the SSD as NTFS, you will need to install additional software in MacOS to be able to use this SSD.

You can also use exFAT, which is supported by OS X and Windows and probably also by Linux.

exFAT is best if you want to read and write to the data medium under Windows, OS X and probably also Linux without additional drivers. However, data media formatted in exFAT under Windows are often not recognised under OS X. Therefore, delete the entire disk under Windows with "Diskpart -> list disk -> select disk -> clean" and then format it on the Mac with Disk Utility in exFAT. Then it will run smoothly on both systems. If only reading is sufficient under OS X, you can stay with NTFS, because OS X can read NTFS without any problems.

You can also use exFAT, which is supported by OS X and Windows and probably also by Linux.

exFAT is the best variant for using different OS. If older Windows versions are used, e.g. Windows XP, then care should be taken to create the disc with an MBR (partition scheme). This is the underlying table that gives the computer information about the existing partitions. In contrast to this is the much newer GUID partition table, which is then only recognised by the newer systems (Windows e.g. from Vista onwards...). with restrictions also before, but this then becomes complicated).